Finding the Fourth Proportional to 200,408.60, 300,470.52 and 100,496.72

Step by Step Solution

1. Step 1: Write the proportion equation
   200,408.60 : 300,470.52 = 100,496.72 : x
2. Step 2: Convert to fraction form
   200,408.60/300,470.52 = 100,496.72/x
3. Step 3: Cross multiply
   200,408.60x = 300,470.52 × 100,496.72
4. Step 4: Simplify right side
   200,408.60x = 30,196,301,716.69
5. Step 5: Solve for x
   x = 30,196,301,716.69/200,408.60
6. Step 6: Final answer
   x = 150,673.68